Multichannel functional electrical stimulation method and multichannel functional electrical stimulation system in muscle synergy mode

A functional electrical stimulation and multi-channel technology, applied in electrotherapy, artificial respiration, physical therapy, etc., can solve the dependence of pulse number adjustment mode, do not consider the natural contraction mode of muscle groups, and lack of muscle coordination mode in multi-channel parameter adjustment Information and other issues to achieve the effect of reducing global muscle fatigue, improving efficiency and inducing joint movement stability

Active Publication Date: 2016-04-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the current multi-channel functional electrical stimulation training systems do not consider the natural contraction mode of the muscle group itself, and its pulse number adjustment method largely depends on experience, lacks the integration of muscle synergy information, and has the following defects :
[0003] (1) The multi-channel parameter adjustment lacks the muscle synergy mode info...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multichannel functional electrical stimulation method and multichannel functional electrical stimulation system in muscle synergy mode
  • Multichannel functional electrical stimulation method and multichannel functional electrical stimulation system in muscle synergy mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0045] Such as figure 1 As shown, a multi-channel functional electrical stimulation method in a muscle synergy mode includes the following steps:

[0046] S1. Collect and preprocess the EMG signals of all muscle groups within the range of motion of the joint to obtain the EMG signals U of multiple muscle groups;

[0047] S2. Perform non-negative matrix decomposition on the multi-muscle group EMG signal U to obtain the muscle group synergy pattern matrix W and the characteristic time series vector H;

[0048] S3. Divide each element in the muscle group synergy pattern matrix W by the sum of the elements in the column where the element is located to obtain a normalized solution W';

[0049] S4. Perform multi-channel electrical stimulation p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a multichannel functional electrical stimulation method and a multichannel functional electrical stimulation system in a muscle synergy mode. The method comprises the following steps: S1, myoelectric signals of all muscle groups in a joint motion range are acquired and pretreated, and multi-muscle group myoelectric signals are obtained; S2, non- negative matrix factorization is carried out on the multi-muscle group myoelectric signals, and a muscle group synergy mode matrix and a feature time sequence vector are obtained; S3, each element in the muscle group synergy mode matrix is divided by the sum of elements of the column where the element is, and a normalized solution is obtained; S4, multichannel electrical stimulation parameter proportion is carried out; and S5, according to the multichannel electrical stimulation parameter proportion result, electrical stimulation is carried out. According to the multichannel functional electrical stimulation method and the multichannel functional electrical stimulation system in the muscle synergy mode, the fact that the current multifunctional electrical stimulation system lacks a stimulation mode by using a human body muscle group natural synergy mode is improved, and the global muscle fatigue degree is reduced.

Description

technical field [0001] The invention relates to a multi-channel functional electrical stimulation method and system in a muscle synergy mode. Background technique [0002] Most of the current multi-channel functional electrical stimulation training systems do not consider the natural contraction mode of the muscle group itself, and its pulse number adjustment method largely depends on experience, lacks the integration of muscle synergy information, and has the following defects : [0003] (1) The multi-channel parameter adjustment lacks the muscle synergy mode information obtained from the decomposition of EMG signals, and the adjustment is not carried out according to the natural mode of normal human muscles. [0004] (2) The torque value generated by electrical stimulation is not stable enough. [0005] (3) It is not possible to switch electrical stimulation channels according to the motion state of the joints, which may easily cause excessive fatigue of muscle groups. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61N1/36
CPCA61N1/36003A61N1/36014A61N1/36135A61N1/36146
Inventor 李展程洪殷紫光
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products